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P01031-Human C5a-3d structure.jpg P01031-Human C5a-3d structure.jpg

Human C5a+SDS-PAGE.jpg Human C5a+SDS-PAGE.jpg Greater than 95% as determined by reducing SDS-PAGE.

Greater than 95% as determined by reducing SDS-PAGE.

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Recombinant Human C5a is a human-derived complement C5a recombinant protein, expressed in E. coli and produced as a tag-free form. Belonging to the anaphylatoxin family, it is a 74-amino acid peptide fragment generated by cleavage of the C5α chain via C5a convertase. The protein features four α-helices and three intrachain disulfide bonds forming a triple-loop structure, with 60% and 54% homology to mouse and rat C5a, respectively. It exerts biological functions by binding to C5aR/CD88 and C5L2 receptors, mediating neutrophil chemotaxis, endothelial cell activation, and inflammatory mediator release.

Synonyms: Recombinant Human C5a; Complement C5; C5a anaphylatoxin

4.5 *For Research Use Only! Not for Human Use. We Do Not Sell to Patients.

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Product Details of Human C5a

M.W : 8.4 KDa
SMILES Code : NONE
Synonyms :
Recombinant Human C5a; Complement C5; C5a anaphylatoxin
English Name :Recombinant Human C5a

Safety of Human C5a

Isoform Comparison

Biological Activity

Description
Human Complement 5a (C5a) is an enzymatically generated glycoprotein that belongs to a family of structurally and functionally related proteins known as anaphylatoxins. C5a is a 74 amino acid (aa) peptide that is created by the activity of C5a convertase on the C5 α-chain. Human C5a has four α-helices plus three intrachain disulfide bonds that create a triple loop structure. Human C5a is 60% and 54% aa identical to mouse and rat C5a, respectively. C5a binds to a signaling G-protein coupled receptor (C5aR/CD88) and a nonsignaling GPCR termed C5L2. Activation of Cd88 results in neutrophil chemotaxis and endothelial cell activation. It also triggers an oxidative burst in macrophages and neutrophils, and induces release of histamine in basophils and mast cells.

In Vitro:

Cell Line
Concentration Treated Time Description References
C-fibers 0.1 μg/mL 2 minutes To evaluate the effect of C5a on ongoing activity of C-fibers, results showed that C5a 0.1 μg/ml did not significantly increase ongoing activity in C-fibers J Neuroinflammation. 2011 Jul 7;8:80
C-fibers 1 μg/mL 2 minutes To evaluate the effect of C5a on ongoing activity of C-fibers, results showed that C5a 1 μg/ml increased ongoing activity in 19.0% of C-fibers J Neuroinflammation. 2011 Jul 7;8:80
RAW264.7 cells 50 ng/mL 24 hours To investigate the effect of C5a on the expression of TLR4, NLRP3, and CASP1 J Gastroenterol. 2023 Sep;58(9):894-907
Human brain microvascular endothelial cells (HBMVECs) 0.1 µg/mL 48 hours To evaluate the effect of C5a on apoptosis in HBMVECs, results showed that C5a significantly increased caspase 3/7 activity and DNA damage. Immunology. 2016 Aug;148(4):407-19
 

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